[RuleML-all] RuleML newbie question

Wed Aug 1 15:19:27 ADT 2007

Hi Roberto,

I think you got Var, Ind and label mixed. Here a version that, if the ink
level is equal to 30, report that ink level as being low.

<?xml version="1.0" encoding="utf-8"?>
<RuleML xmlns="http://www.ruleml.org/0.9/xsd" xsi:schemaLocation="
http://www.ruleml.org/0.9/xsd ruleml-0_9-nafdatalog.xsd" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
 <oid>
   <Ind>Ink Control Knowledge Base</Ind>
 </oid>
 <Assert>
   <!--  Implication: Ink is low level if Level is equal 30 -->
   <Implies>
     <head>
       <Atom>
         <Rel>LowLevel</Rel>
         <Var>Ink</Var>
       </Atom>
     </head>
     <body>
       <Atom>
         <Rel>Level</Rel>
         <Var>Ink</Var>
         <Ind>30</Ind>
       </Atom>
     </body>
   </Implies>
   <!--  RedInk is level 30  -->
   <Atom>
     <Rel>Level</Rel>
     <Ind>RedInk</Ind>
     <Ind>30</Ind>
   </Atom>
 </Assert>
 <!--  Query: Find low level inks -->
 <Query>
   <oid>
     <Ind>Low Level Ink</Ind>
   </oid>
   <Atom>
     <Rel>LowLevel</Rel>
     <Var>Ink</Var>
   </Atom>
 </Query>
</RuleML>

On 8/1/07, Colnaghi Junior, Roberto (R&D Brazil) <roberto.junior at hp.com>
wrote:
>
> Hi all,
>
> I'm still trying to figure out how to work with RuleML on NxBRE console
> app.
>
> I'm trying to build a simple Implication, feeding a single Fact and wish
> to query it back.
>
> After long hours of frustration I'm still not able to see the magic of
> it.
>
> Can someone help me find out if the ruleml.0.9 file is correct?
>
> Thanks in advance,
> Roberto
>
>
> <?xml version="1.0" encoding="utf-8"?>
> <RuleML xmlns="http://www.ruleml.org/0.9/xsd"
> xsi:schemaLocation="http://www.ruleml.org/0.9/xsd
> ruleml-0_9-nafdatalog.xsd"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
>   <oid>
>     <Ind>Ink Control Knowledge Base</Ind>
>   </oid>
>   <Assert>
>     <!--  Implication: Ink is low level if Level is less or equals 30
> -->
>     <Implies>
>       <head>
>         <Atom>
>           <Rel>LowLevel</Rel>
>           <Var>Ink</Var>
>         </Atom>
>       </head>
>       <body>
>         <Atom>
>           <Rel>Level</Rel>
>           <Var>Ink</Var>
>           <Ind>30</Ind>
>         </Atom>
>       </body>
>     </Implies>
>     <!--  RedInk is level 30  -->
>     <Atom>
>       <oid>
>         <Ind>Level</Ind>
>       </oid>
>       <Rel>RedInk</Rel>
>       <Ind>30</Ind>
>     </Atom>
>   </Assert>
>   <!--  Query: Find low level inks -->
>   <Query>
>     <oid>
>       <Ind>Low Level Ink</Ind>
>     </oid>
>     <Atom>
>       <Rel>LowLevel</Rel>
>       <Var>Level</Var>
>       <Var>Ink</Var>
>     </Atom>
>   </Query>
> </RuleML>
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>
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